fuel CHEVROLET AVALANCHE 2008 2.G Workshop Manual

Maintenance Schedule......................................6-2
Introduction...................................................6-2
Maintenance Requirements..............................6-2
Your Vehicle and the Environment....................6-2
Using the Maintenance Schedule......................6-3
Scheduled Maintenance...................................6-4
Additional Required Services............................6-6
Maintenance Footnotes...................................6-7Owner Checks and Services............................6-9
At Each Fuel Fill............................................6-9
At Least Once a Month.................................6-10
At Least Once a Year...................................6-10
Recommended Fluids and Lubricants...............6-13
Maintenance Replacement Parts.....................6-15
Engine Drive Belt Routing..............................6-16
Maintenance Record.....................................6-17
Section 6 Maintenance Schedule
6-1

Using the Maintenance Schedule
We want to help you keep your vehicle in good working
condition. But we do not know exactly how you will
drive it. You might drive very short distances only a few
times a week. Or you might drive long distances all
the time in very hot, dusty weather. You might use your
vehicle in making deliveries. Or you might drive it to
work, to do errands, or in many other ways.
Because of all the different ways people use their
vehicles, maintenance needs vary. You might need more
frequent checks and replacements. So please read
the following and note how you drive. If you have any
questions on how to keep your vehicle in good condition,
see your dealer/retailer.
This schedule is for vehicles that:
carry passengers and cargo within recommended
limits. You will nd these limits on the Tire and
Loading Information label. SeeLoading Your
Vehicle on page 4-36.
are driven on reasonable road surfaces within legal
driving limits.
are driven off-road in the recommended manner.
SeeOff-Road Driving on page 4-12.
use the recommended fuel. SeeGasoline Octane
on page 5-5.The services inScheduled Maintenance on page 6-4
should be performed when indicated. SeeAdditional
Required Services on page 6-6andMaintenance
Footnotes on page 6-7for further information.
{CAUTION:
Performing maintenance work on a vehicle
can be dangerous. In trying to do some jobs,
you can be seriously injured. Do your own
maintenance work only if you have the
required know-how and the proper tools and
equipment for the job. If you have any doubt,
see your dealer/retailer to have a qualied
technician do the work. SeeDoing Your
Own Service Work on page 5-4.
Some maintenance services can be complex.
So, unless you are technically qualied and have
the necessary equipment, you should have your
dealer/retailer do these jobs.
When you go to your dealer/retailer for your service
needs, you will know that trained and supported service
technicians will perform the work using genuine parts.
6-3

Additional Required Services
The following services should be performed at the rst maintenance service (IorII) after the indicated miles
(kilometers) shown for each item.
Additional Required Services
Service and Miles (Kilometers)25,000
(40 000)50,000
(80 000)75,000
(120 000)100,000
(160 000)125,000
(200 000)150,000
(240 000)
Inspect fuel system for damage or leaks.• •••••
Inspect exhaust system for loose or
damaged components.• •••••
Vehicles without a lter restriction
indicator: Replace engine air cleaner
lter. SeeEngine Air Cleaner/Filter on
page 5-20.•••
Change automatic transmission uid and
lter (severe service).See footnote (h).•••
Change automatic transmission uid and
lter (normal service).•
Change transfer case uid.
See footnote (g).•••
Inspect evaporative control system.
An Emission Control Service.
See footnotes † and (k).•••
Replace spark plugs and inspect spark
plug wires.An Emission Control Service.•
6-6

(c)Visually inspect hoses and have them replaced if
they are cracked, swollen, or deteriorated. Inspect all
pipes, ttings, and clamps; replace with genuine parts as
needed. To help ensure proper operation, a pressure test
of the cooling system and pressure cap and cleaning the
outside of the radiator and air conditioning condenser is
recommended at least once a year.
(d)Inspect wiper blades for wear, cracking, or
contamination. Clean the windshield and wiper blades,
if contaminated. Replace wiper blades that are worn
or damaged. See Windshield Wiper Blade Replacement
on page 5-55andWindshield and Wiper Blades on
page 5-104for more information.
(e)Make sure the safety belt reminder light and safety
belt assemblies are working properly. Look for any other
loose or damaged safety belt system parts. If you see
anything that might keep a safety belt system from doing
its job, have it repaired. Have any torn or frayed safety
belts replaced. Also see Checking the Restraint Systems
on page 1-76.
(f)Lubricate all key lock cylinders, hood latch assembly,
secondary latch, pivots, spring anchor, release pawl,
midgate hinges, side storage box door hinges, tailgate
hinges, tailgate linkage, outer tailgate handle pivot
points, latch bolt, fuel door hinge, locks, and folding
seat hardware. More frequent lubrication may be
required when exposed to a corrosive environment.Applying silicone grease on weatherstrips with a clean
cloth will make them last longer, seal better, and
not stick or squeak.
(g)Check vent hose at transfer case for kinks and
proper installation.
(h)Change automatic transmission uid and lter if the
vehicle is mainly driven under one or more of these
conditions:
In heavy city traffic where the outside temperature
regularly reaches 90°F (32°C) or higher.
In hilly or mountainous terrain.
When doing frequent trailer towing.
Uses such as found in taxi, police, or delivery
service.
(i)Drain, ush, and rell cooling system. This service
can be complex; you should have your dealer/retailer
perform this service. See Engine Coolant on page 5-25
for what to use. Inspect hoses. Clean radiator,
condenser, pressure cap, and ller neck. Pressure test
the cooling system and pressure cap.
(j)A uid loss in any vehicle system could indicate a
problem. Have the system inspected and repaired and
the uid level checked. Add uid if needed.
6-8

(k)Inspect system. Check all fuel and vapor lines and
hoses for proper hook-up, routing, and condition. Check
that the purge valve works properly, if equipped.
Replace as needed.
(l)If you drive regularly under dusty conditions, inspect
the lter at each engine oil change.
(m)Visually inspect belt for fraying, excessive cracks, or
obvious damage. Replace belt if necessary.
Owner Checks and Services
These owner checks and services should be performed
at the intervals specied to help ensure the safety,
dependability, and emission control performance of your
vehicle. Your dealer/retailer can assist you with these
checks and services.
Be sure any necessary repairs are completed at once.
Whenever any uids or lubricants are added to your
vehicle, make sure they are the proper ones, as shown
inRecommended Fluids and Lubricants on page 6-13.
At Each Fuel Fill
It is important to perform these underhood checks at
each fuel ll.
Engine Oil Level Check
Notice:It is important to check the engine oil
regularly and keep it at the proper level. Failure to
keep the engine oil at the proper level can cause
damage to the engine not covered by your warranty.
Check the engine oil level and add the proper oil if
necessary. SeeEngine Oil on page 5-15.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL®
coolant mixture if necessary. SeeEngine Coolant
on page 5-25.
Windshield Washer Fluid Level Check
Check the windshield washer uid level in the
windshield washer uid reservoir and add the proper uid
if necessary.
6-9

Maintenance Replacement Parts
Replacement parts identied below by name, part number, or specication can be obtained from your dealer/retailer.
Maintenance Replacement Parts
Part GM Part Number ACDelco Part Number
Engine Air Cleaner /Filter
High Capacity Filter 15908915 A3085C
Standard Filter 15908916* A3086C*
Oil Filter
5.3L V8, 5.3L V8 Flexible Fuel, 6.0L V8 89017524 PF48
Spark Plugs
5.3L V8, 5.3L V8 Flexible Fuel, 6.0L V8 12571164 41-985
Wiper Blades (ITTA Type)
Front – 21.6 inches (55.0 cm) 25877402 —
*15908915 (A3085C) high-capacity air cleaner lter may be substituted.
6-15

Services Provided
The following services are provided in the U.S. and
Canada up to 5 years/100,000 miles (160 000 km),
whichever occurs rst, and, in Canada only, up
to a maximum coverage of $100.
Fuel Delivery:Delivery of enough fuel for the
vehicle to get to the nearest service station
(approximately $5 in Canada). In Canada, service
to provide diesel may be restricted. For safety
reasons, propane and other alternative fuels will
not be provided through this service.
Lock-out Service:Lock-out service will be covered
at no charge if you are unable to gain entry into your
vehicle. A remote unlock may be available if you
have an active OnStar
®subscription. To ensure
security, the driver must present personal
identication before lock-out service is provided.
In Canada, the vehicle registration is also required.
Emergency Tow From a Public Roadway or
Highway:Tow to the nearest dealership for warranty
service or in the event of a vehicle-disabling crash.
Winch-out assistance is provided when the vehicle is
mired in sand, mud, or snow.
Flat Tire Change:Installation of a spare tire in good
condition, when equipped and properly inated, is
covered at no charge. The customer is responsible
for the repair or replacement of the tire if not covered
by a warrantable failure.
Jump Start:A battery jump start is covered at no
charge if the vehicle does not start.
Trip Routing Service (Canada only):Upon
request, Roadside Assistance will send you detailed,
computer personalized maps, highlighting your
choice of either the most direct route or the most
scenic route to your destination, anywhere in North
America, along with helpful travel information
pertaining to your trip.
Please allow three weeks before your planned
departure date. Trip routing requests will be limited
to six per calendar year.
7-7

Transportation Options
Warranty service can generally be completed while you
wait. However, if you are unable to wait, GM helps
to minimize your inconvenience by providing several
transportation options. Depending on the circumstances,
your dealer can offer you one of the following:
Shuttle Service
Shuttle service is the preferred means of offering
Courtesy Transportation. Dealers may provide you
with shuttle service to get you to your destination with
minimal interruption of your daily schedule. This includes
one-way or round trip shuttle service within reasonable
time and distance parameters of the dealer’s area.
Public Transportation or Fuel
Reimbursement
If your vehicle requires overnight warranty repairs,
and public transportation is used instead of the dealer’s
shuttle service, the expense must be supported by
original receipts and can only be up to the maximum
amount allowed by GM for shuttle service. In addition,
for U.S. customers, should you arrange transportation
through a friend or relative, limited reimbursement
for reasonable fuel expenses may be available.Claim amounts should reect actual costs and be
supported by original receipts. See your dealer for
information regarding the allowance amounts for
reimbursement of fuel or other transportation costs.
Courtesy Rental Vehicle
Your dealer may arrange to provide you with a courtesy
rental vehicle or reimburse you for a rental vehicle that
you obtain if your vehicle is kept for an overnight warranty
repair. Rental reimbursement will be limited and must
be supported by original receipts. This requires that you
sign and complete a rental agreement and meet state/
provincial, local, and rental vehicle provider requirements.
Requirements vary and may include minimum age
requirements, insurance coverage, credit card, etc.
You are responsible for fuel usage charges and may
also be responsible for taxes, levies, usage fees,
excessive mileage, or rental usage beyond the
completion of the repair.
It may not be possible to provide a like-vehicle as a
courtesy rental.
7-10

Vehicle Data Recording and
Privacy
Your GM vehicle has a number of sophisticated
computers that record information about the vehicle’s
performance and how it is driven. For example, your
vehicle uses computer modules to monitor and control
engine and transmission performance, to monitor the
conditions for airbag deployment and deploy airbags in a
crash and, if so equipped, to provide antilock braking to
help the driver control the vehicle. These modules may
store data to help your dealer/retailer technician service
your vehicle. Some modules may also store data about
how you operate the vehicle, such as rate of fuel
consumption or average speed. These modules may also
retain the owner’s personal preferences, such as radio
pre-sets, seat positions, and temperature settings.
Event Data Recorders
This vehicle has an Event Data Recorder (EDR).
The main purpose of an EDR is to record, in certain
crash or near crash-like situations, such as an airbag
deployment or hitting a road obstacle, data that will
assist in understanding how a vehicle’s systems
performed. The EDR is designed to record data related
to vehicle dynamics and safety systems for a short
period of time, typically 30 seconds or less. The EDR
in this vehicle is designed to record such data as:
How various systems in your vehicle were operating
Whether or not the driver and passenger safety
belts were buckled/fastened
How far, if at all, the driver was pressing the
accelerator and/or brake pedal
How fast the vehicle was traveling
This data can help provide a better understanding of the
circumstances in which crashes and injuries occur.
Important:EDR data is recorded by your vehicle only
if a non-trivial crash situation occurs; no data is recorded
by the EDR under normal driving conditions and no
personal data (e.g., name, gender, age, and crash
location) is recorded. However, other parties, such as law
enforcement, could combine the EDR data with the type
of personally identifying data routinely acquired during a
crash investigation.
7-16

A
Accessories and Modications............................ 5-3
Accessory Power Outlets.................................3-20
Adding Equipment to Your Airbag-Equipped
Vehicle.......................................................1-74
Additives, Fuel................................................. 5-6
Add-On Electrical Equipment...........................5-108
Adjustable Throttle and Brake Pedal..................2-33
Air Cleaner/Filter, Engine.................................5-20
Air Conditioning......................................3-21, 3-24
Airbag
Passenger Status Indicator...........................3-36
Readiness Light..........................................3-35
Airbag System................................................1-60
Adding Equipment to Your Airbag-Equipped
Vehicle...................................................1-74
How Does an Airbag Restrain?......................1-67
Passenger Sensing System...........................1-69
Servicing Your Airbag-Equipped Vehicle..........1-74
What Makes an Airbag Inate?......................1-67
What Will You See After an Airbag Inates?....1-68
When Should an Airbag Inate?....................1-65
Where Are the Airbags?...............................1-63
Antenna, Fixed Mast......................................3-120
Antenna, XM™ Satellite Radio Antenna
System.....................................................3-120
Antilock Brake System (ABS)............................. 4-4
Anti-lock Brake, System Warning Light...............3-41Appearance Care
Aluminum or Chrome-Plated Wheels.............5-104
Care of Safety Belts...................................5-102
Chemical Paint Spotting..............................5-106
Cleaning Exterior Lamps/Lenses..................5-103
Fabric/Carpet............................................5-100
Finish Care...............................................5-103
Finish Damage..........................................5-105
Instrument Panel, Vinyl, and Other
Plastic Surfaces.....................................5-101
Interior Cleaning..........................................5-99
Leather....................................................5-101
Sheet Metal Damage..................................5-105
Tires........................................................5-105
Underbody Maintenance.............................5-105
Vehicle Care/Appearance Materials...............5-106
Washing Your Vehicle.................................5-102
Weatherstrips............................................5-102
Windshield and Wiper Blades......................5-104
Appointments, Scheduling Service....................... 7-9
Ashtray.........................................................3-20
Audio System.................................................3-75
Audio Steering Wheel Controls....................3-118
Fixed Mast Antenna...................................3-120
Navigation/Radio System,
see Navigation Manual............................3-107
Radio Reception........................................3-119
Rear Seat Audio (RSA)...............................3-116
Setting the Clock.........................................3-76
1